Self-return type traceless bending die

Abstract

The utility model discloses a self-return type traceless bending die, which relates to the field of plate bending and comprises a base, a bottom plate, a lower bending die, a lifting plate and an upper bending die, the bottom plate is mounted on the base, the lower bending die is arranged on the bottom plate, and the upper bending die is arranged at the bottom of the lifting plate; a plate is placed on the lower bending die, the driving nut is screwed, the driving nut drives the threaded rod to rotate, the threaded rod drives the upper pressing plate to ascend and descend through the lifting nut, the plate is clamped through the upper pressing plate and the lower pressing plate, the plate is machined through the upper bending die and the lower bending die, and therefore displacement of the plate during machining is prevented; friction between the plate and the lower bending die is reduced, and obvious indentation of the plate is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to plate bending technical field, concretely relates to a self-return type traceless bending mould. BACKGROUND

[0002] At present, the bending mould of plate is generally composed of upper mould piece and lower mould piece with notches, in the processing, the plate is under the pressure of the force line of lower mould piece, and in the bending and stretching deformation process, the plate is under the friction of lower mould piece, which can easily cause obvious indentation on the surface of the plate. For the product with high surface requirement, such as stainless steel plate with surface wire drawing, it is generally used for the appearance of product, and the customer often requires no indentation, the traditional processing method is to pad the cloth or cloth strip on the lower mould piece, but the cloth or cloth strip will be broken after several bending, which can cause damage to the product. SUMMARY

[0003] In order to solve the technical problems existing in the prior art, the utility model provides a self-return type traceless bending mould.

[0004] In order to achieve the above purpose, the utility model provides the following technical scheme: a self-return type traceless bending mould, which comprises a base, a bottom plate, a lower bending mould, a lifting plate and an upper bending mould, the bottom plate is installed on the base, the lower bending mould is arranged on the bottom plate, and the upper bending mould is arranged at the bottom of the lifting plate.

[0005] Its characterized in that: the base is provided with slide rails at intervals left and right, the bottom plate is provided with slide blocks at intervals left and right, the slide blocks are slidably installed on the slide rails, the base is provided with fixed columns at intervals left and right, and the lifting plate is slidably installed on the fixed columns.

[0006] The bottom plate is provided with fixed plates at intervals left and right, the fixed plates are provided with lower pressing plates, the fixed plates are provided with limiting columns, the limiting columns are slidably provided with upper pressing plates, the fixed plates are provided with lifting mechanisms, the lifting mechanisms are connected with the upper pressing plates, and the lifting mechanisms are used to drive the upper pressing plates to move up and down on the limiting columns.

[0007] Preferably, the lifting mechanism comprises a driving nut rotatably installed on the fixed plate, a threaded rod is arranged on the driving nut, a through hole penetrating up and down is formed in the upper pressing plate, the through hole is matched with the threaded rod, a lifting nut is rotatably installed on the upper pressing plate, and the lifting nut is threadedly connected with the threaded rod.

[0008] Preferably, the fixed plate is provided with a connecting plate, the base is provided with a front and rear translation mechanism, the front and rear translation mechanism is connected with the connecting plate, and the front and rear translation mechanism is used to drive the bottom plate to move forward and backward on the slide rail through the connecting plate.

[0009] Preferably, the base is provided with connecting blocks at left and right intervals, two opposite sides of the connecting blocks are rotatably provided with rotating shafts, the front and rear translation mechanism comprises a driving plate provided on the rotating shafts, the driving plate is in L-shaped plate structure, the driving plate is provided with a first limiting groove, the connecting blocks are rotatably provided with first rollers, and the first rollers are arranged in the first limiting groove.

[0010] Preferably, the lifting plate is provided with L-shaped connecting plates at left and right intervals, the L-shaped connecting plates are provided with transmission mechanisms, the transmission mechanisms are connected with the driving plates and the L-shaped connecting plates respectively, and the transmission mechanisms are used for overturning through the driving plates, so that the driving base plate can drive the base plate to move on the sliding rails.

[0011] Preferably, the transmission mechanism comprises a second roller rotatably provided on the driving plate, the L-shaped connecting plates are provided with second limiting grooves, the second rollers are arranged in the second limiting grooves, the connecting blocks are provided with reset members, the reset members are connected with the driving plates, and the reset members are used for driving the driving plates to reset.

[0012] Preferably, the reset member is a torsion spring.

[0013] Compared with the prior art, the self-returning traceless bending die has the following beneficial effects:

[0014] (1) The plate is placed on the lower bending die, the driving nut is twisted, the driving nut drives the threaded rod to rotate, the threaded rod drives the upper pressing plate to lift through the lifting nut, the plate is clamped through the upper pressing plate and the lower pressing plate, and the plate is processed through the upper bending die and the lower bending die, so that displacement of the plate during processing is prevented, friction between the plate and the lower bending die is reduced, and obvious indentation of the plate is avoided.

[0015] (2) After the plate is processed, the reset member can drive the base plate to move away from the upper bending die through the transmission mechanism, so that the processed plate is taken out, the operator is facilitated to disassemble the plate, and the practicability of the device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] The drawings are used to provide a further understanding of the present application, and constitute a part of the specification, together with the embodiments of the present application, to explain the present application, and do not constitute a limitation to the present application, in the drawings:

[0017] Figure 1 It is a three-dimensional structure schematic view of the whole equipment in the embodiment;

[0018] Figure 2 It is a front view of the whole equipment in the embodiment;

[0019] Figure 3 A schematic diagram of the perspective structure of the entire device in the embodiment;

[0020] Figure 4 A schematic diagram of the perspective structure of the entire device in the embodiment; Figure 1 A schematic diagram of the enlarged structure at A in the embodiment;

[0021] Figure 5 A schematic diagram of the perspective structure of the entire device in the embodiment; Figure 3 A schematic diagram of the enlarged structure at B in the embodiment.

[0022] In the figure: 10, base; 11, bottom plate; 12, lower bending die; 13, lifting plate; 14, upper bending die; 15, sliding rail; 151, sliding block; 16, fixed column; 17, fixed plate; 171, limiting column; 18, lower pressing plate; 181, upper pressing plate; 19, drive nut; 191, lifting nut; 20, threaded rod; 21, connecting plate; 22, connecting block; 23, rotating shaft; 24, drive plate; 241, first limiting groove; 25, first roller; 26, L-shaped connecting plate; 27, second roller; 271, second limiting groove; 28, torsional spring. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the accompanying drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0024] The present embodiment provides a self-backhaul type traceless bending die, as shown in the figure, which comprises a base 10, a bottom plate 11, a lower bending die 12, a lifting plate 13 and an upper bending die 14. The bottom plate 11 is installed on the base 10, the lower bending die 12 is arranged on the bottom plate 11, the upper bending die 14 is arranged at the bottom of the lifting plate 13, and the lifting plate 13 is connected with a pressing machine. Figures 1 to 5

[0025] The base 10 is provided with sliding rails 15 at intervals left and right, and the bottom plate 11 is provided with sliding blocks 151 at intervals left and right at the bottom. The sliding blocks 151 are slidingly installed on the sliding rails 15, the base 10 is provided with fixed columns 16 at intervals left and right, the lifting plate 13 is slidingly installed on the fixed columns 16, and the bottom plate 11 is provided with fixed plates 17 at intervals left and right.

[0026] ​A connecting plate 21 is installed on the fixed plate 17. A front-to-back translation mechanism is provided on the base 10. The front-to-back translation mechanism is connected to the connecting plate 21. The front-to-back translation mechanism is used to drive the base plate 11 to move back and forth on the slide rail 15 through the connecting plate 21. Connecting blocks 22 are provided on the left and right sides of the base 10. A rotating shaft 23 is rotatably installed on one side of the two connecting blocks 22. The front-to-back translation mechanism includes a drive plate 24 installed on the rotating shaft 23. The drive plate 24 is an L-shaped plate structure. A first limiting groove 241 is opened on the drive plate 24. A first roller 25 is rotatably installed on the connecting block 22. The first roller 25 is located in the first limiting groove 241.

[0027] The lifting plate 13 is provided with L-shaped connecting plates 26 spaced apart on the left and right. The L-shaped connecting plates 26 are provided with a transmission mechanism. The transmission mechanism is connected to the driving plate 24 and the L-shaped connecting plates 26 respectively. The transmission mechanism is used to rotate the driving plate 24, so that the driving plate 24 can drive the base plate 11 to move on the slide rail 15. The transmission mechanism includes a second roller 27 rotatably mounted on the driving plate 24. The L-shaped connecting plate 26 is provided with a second limiting groove 271. The second roller 27 is disposed inside the second limiting groove 271. The connecting block 22 is provided with a reset member. The reset member is connected to the driving plate 24 and is used to drive the driving plate 24 to reset. The reset member is a torsion spring 28.

[0028] Please see Figures 1-5 When the press drives the lifting plate 13 to move downward, the lifting plate 13 simultaneously drives the L-shaped connecting plate 26 to move downward. The L-shaped connecting plate 26 drives the second roller 27 to move through the second limiting groove 271. The second roller 27 drives the drive plate 24 to flip. The flipping of the drive plate 24 simultaneously drives the rotating shaft 23 to rotate. At the same time, the drive plate 24 compresses the torsion spring 28. The drive plate 24 drives the first roller 25 to move through the first limiting groove 241. The first roller 25 drives the fixed plate 17 to move towards the upward bending die 14 through the connecting plate 21. The fixed plate 17 drives the bottom plate 11 to move towards the upward bending die 14 on the slide rail 15. The bottom plate 11 drives the lower bending die 12 to move towards the upward bending die 14. The upper bending die 14 and the lower bending die 12 are used to process the sheet metal.

[0029] After the sheet material is processed, the press drives the lifting plate 13 to move downwards, while the torsion spring 28 drives the drive plate 24 to flip in the opposite direction. The drive plate 24 drives the first roller 25 to move away from the upper bending die 14 through the first limiting groove 241. The first roller 25 drives the fixing plate 17 to move away from the upper bending die 14 through the connecting plate 21. The fixing plate 17 drives the bottom plate 11 to move away from the upper bending die 14 on the slide rail 15. The bottom plate 11 drives the lower bending die 12 to move away from the upper bending die 14, thereby carrying out the processed sheet material.

[0030] A lower pressure plate 18 is installed on the fixed plate 17. A limiting post 171 is provided on the fixed plate 17. An upper pressure plate 181 is slidably installed on the limiting post 171. A lifting mechanism is provided on the fixed plate 17. The lifting mechanism is connected to the upper pressure plate 181. The lifting mechanism is used to drive the upper pressure plate 181 to move up and down on the limiting post 171. The lifting mechanism includes a drive nut 19 rotatably installed on the fixed plate 17. A threaded rod 20 is provided on the drive nut 19. A through hole is opened on the upper pressure plate 181, which is adapted to the threaded rod 20. A lifting nut 191 is rotatably installed on the upper pressure plate 181. The lifting nut 191 is threadedly connected to the threaded rod 20. A cloth strip or adhesive tape is provided on the opposite side of the upper pressure plate 181 and the lower pressure plate 18 to prevent the plate from being crushed.

[0031] Please see Figures 1-5 Working principle: When processing sheet metal, the sheet metal is placed on the lower bending die 12. The operator turns the drive nut 19, which drives the threaded rod 20 to rotate. Since the limit post 171 limits the upper pressure plate 181, the upper pressure plate 181 can only move up and down on the limit post 171. When the threaded rod 20 rotates, the threaded rod 20 drives the lifting nut 191 to move downward. The lifting nut 191 drives the upper pressure plate 181 to move downward. The upper pressure plate 181 and the lower pressure plate 181 clamp the sheet metal, thereby preventing the sheet metal from shifting during processing and avoiding obvious indentations on the sheet metal.

[0032] After the upper pressure plate 181 and the lower pressure plate 18 clamp the sheet metal, when the press drives the lifting plate 13 to move downward, the lifting plate 13 simultaneously drives the L-shaped connecting plate 26 to move downward. The L-shaped connecting plate 26 drives the second roller 27 to move through the second limiting groove 271. The second roller 27 drives the drive plate 24 to flip. The drive plate 24 flips and drives the rotating shaft 23 to rotate. At the same time, the drive plate 24 compresses the torsion spring 28. The drive plate 24 drives the first roller 25 to move through the first limiting groove 241. The first roller 25 drives the fixed plate 17 to move towards the upward bending die 14 through the connecting plate 21. The fixed plate 17 drives the bottom plate 11 to move towards the upward bending die 14 on the slide rail 15. The bottom plate 11 drives the lower bending die 12 to move towards the upward bending die 14. The sheet metal is processed by the upper bending die 14 and the lower bending die 12.

[0033] In the description of this utility model, the terms "first," "second," "another," and "yet another" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, in the description of this utility model, unless otherwise stated, "multiple" means two or more.

[0035] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A self-backhaul type traceless bending die, comprising a base (10), a bottom plate (11), a lower bending die (12), a lifting plate (13) and an upper bending die (14), the bottom plate (11) is installed on the base (10), the lower bending die (12) is arranged on the bottom plate (11), and the upper bending die (14) is arranged at the bottom of the lifting plate (13) ; characterized in that A slide rail (15) is arranged on the base (10) in a left-right interval, a slide block (151) is arranged on the bottom of the bottom plate (11) in a left-right interval, the slide block (151) is slidingly installed on the slide rail (15), a fixed column (16) is arranged on the base (10) in a left-right interval, and the lifting plate (13) is slidingly installed on the fixed column (16) ; A fixed plate (17) is arranged on the bottom plate (11) in a left-right interval, a lower pressing plate (18) is installed on the fixed plate (17), a limiting column (171) is arranged on the fixed plate (17), an upper pressing plate (181) is slidingly installed on the limiting column (171), a lifting mechanism is arranged on the fixed plate (17), the lifting mechanism is connected with the upper pressing plate (181), and the lifting mechanism is used to drive the upper pressing plate (181) to move up and down on the limiting column (171).

2. A self-backing bend die without trace according to claim 1, characterized in that: The lifting mechanism comprises a driving nut (19) which is rotationally installed on the fixed plate (17), a threaded rod (20) is arranged on the driving nut (19), a through hole is formed in the upper pressing plate (181) in a vertical direction, the through hole is matched with the threaded rod (20), a lifting nut (191) is rotationally installed on the upper pressing plate (181), and the lifting nut (191) is in threaded connection with the threaded rod (20).

3. The self-back-up bend die without marks according to claim 1, characterized in that: A connecting plate (21) is installed on the fixed plate (17), a front-rear translation mechanism is arranged on the base (10), the front-rear translation mechanism is connected with the connecting plate (21), and the front-rear translation mechanism is used to drive the bottom plate (11) to move forward and backward on the slide rail (15) through the connecting plate (21).

4. The self-back-up bend die without marks according to claim 3, characterized in that: A connecting block (22) is arranged on the base (10) in a left-right interval, a rotating shaft (23) is rotationally installed on one side of the two connecting blocks (22) opposite to each other, the front-rear translation mechanism comprises a driving plate (24) which is installed on the rotating shaft (23), the driving plate (24) is in an L-shaped plate structure, a first limiting groove (241) is formed in the driving plate (24), a first roller (25) is rotationally installed on the connecting block (22), and the first roller (25) is arranged in the first limiting groove (241).

5. A self-return bend die according to claim 4, wherein: L-shaped connecting plates (26) are arranged on the lifting plate (13) in a left-right interval, a transmission mechanism is arranged on the L-shaped connecting plate (26), the transmission mechanism is connected with the driving plate (24) and the L-shaped connecting plate (26) respectively, the transmission mechanism is used to flip through the driving plate (24), so that the driving plate (24) can drive the bottom plate (11) to move on the slide rail (15).

6. A self-return bend die according to claim 5 wherein: The transmission mechanism comprises a second roller (27) rotatably mounted on a driving plate (24), a second limiting groove (271) is formed in the L-shaped connecting plate (26), the second roller (27) is arranged in the second limiting groove (271), a reset member is arranged on the connecting block (22), the reset member is connected with the driving plate (24), and the reset member is used to drive the driving plate (24) to reset.

7. A self-return bend die according to claim 6 wherein: The reset member is a torsion spring (28).

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